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[目的]明确20%百草枯可溶粒剂对非耕地杂草的防效。[方法]采用茎叶喷雾施药、定期调查的方法进行田间药效试验。[结果]在推荐用量为450~750 g a.i./hm2下,施药7 d后对杂草总体防效可达81.06%~92.43%。[结论]20%百草枯可溶粒剂能够有效地防除胜红蓟、龙葵等非耕地杂草。
[Objective] To clarify the control effect of 20% paraquat soluble granules on non-cultivated weeds. [Method] Spraying stems and leaves with spraying, regular investigation method for field efficacy test. [Result] Under the recommended dosage of 450 ~ 750 g a.i./hm2, the control effect on weeds was 81.06% ~ 92.43% after 7 days. [Conclusion] The 20% paraquat soluble granules can effectively control non-cultivated weeds such as red thistle and solanum nigrum.